Double electric arc lamp



(No Model.) 4 SheetsSheet l.

w. HOOHHAUSEN.

DOUBLE ELECTRIC ARU LAMP. No. 294,042. Patented Feb. 26, 1884.

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N. PETERS. Pholo-Ufhagmphw, Washingmn. D. I.

(No Model.) 4 Sheets-Sheet 2.

W. HOOHHAUSEN.

DOUBLE ELEGTRIO ABC LAMP.

No. 294,042. Patented Feb. 26,1884.

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W. HOGHHAUSEN.

DOUBLE ELECTRIC ARC LAMP. No. 294,042. Patented Feb. .26, 1884.

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(No Model.) 4 sheets sheet 4. W. HOGHHAUSEN.

DOUBLE ELECTRIC ARC LAMP.

No. 294,042. Patented Feb. 26, 1884.

,By All: .ifi

N. PETER 'n nar. Wnhingmn. uc,

UNITED STATES PATENT IVILLIAM HOOHHAUSEN, OF NElV YORK, X. Y.

DOUBLE ELECTRIC-ARC LAMP.

SPECIFICATION forming part of Letters Patent No. 294,042, dated February26, 1884.

Application filed April 23, 1893. (No model.)

To to whom, it may concern.-

Be it known that I, WM. HOOHHAUSEN, a citizen of the United States, anda resident of New York, in the county of New York and State of New York,have invented certain new and useful Improvements in Double Electric-Arc Lamps, of which the following is a speeification.

My invention relates to electric-arc lamps of the class in which twosets of carbons are combined in such a way that the carbons of one setmay be held out of action until the carbons of the first set areconsumed, at which time the set held out of action is automaticallyreleased, so that it may be regulated or fed in the same way as thefirstacting set.

My invention consists of certain combinations of regulating and feedingmechanism, carbon-carriers, and locking and releasing devices malzing upa double-carbon lamp of novel construction and action, the peculiaritiesof which will be hereinafter more particularly set forth.

In carrying out my invention, I duplicate the ordinary feed-regulatingmechanism of an electric lamp, but support the same in a common lever orsupport, which is actuated in the usual way by a magnet or magnet systemof ordinary construction. XVith the two carboncarriers are combinedsuitable intermediate locking and unlocking devices, whereby onecarbon-carrier may be held from feeding, and may be released by thedescent of the other carbon-carrier.

My invention further consists of certain hereinafter-specifiedimprovements in the automatic cut-out for the lamp.

In the accompanying drawings, Figure l is an end view of a doubleelectric lamp embodying my invention. Fig. 2 is a side view of the same.Fig. 3 is a vertical central section 011 the line y y of Fig. 1. Fig. 4-is a detail view of the feed-regulating train of wheels. Figs. 5 and 6show in detail a quick-release device for said train. Figs. 7 and 8 showin detail the intermediate locking and releasing catch between the twoearbon-carriers. Fig. 9 illustrates the circuits of the lamp.

A A indicate, respectively, the top and bottom plates of the lamp,between which is the lower plate, A-.

placed a frame or casin E, from which latter the magnets and otherworking parts of the lamp are supported.

0 0 indicate the main-circuit magnet, and

D D the derived-circuit magnet, the former having movable coresconnected by a crosspiece, L, which latter rests upon the end of leverG, carrying the feed-regulating trains of wheels for the twocarbon-carriers 13 B when there is no current passing through thecarbons. The cores of the derived-circuit magnet D are connected by across-piece, I hung by links from the end of lever G. A counter-weight,G", attached to the lever, acts in opposition to the attraction ofmagnets D D. The weight of the main-magnet cores and cross-piece L is,however. sufficient to overcome weight G and to hold the end of lever Gdown when no current is passing, so that the carbons may come freelytogether. IVhen the current passes, the cores and cross-bar L are raisedby magnet O O, and are held up out of connection with lever G, so thatthe latter is operated to produce the proper movements of thefeed-regulating mechanism by the derivedcircuit magnet only. Thisarrangement is substantially the same as that patented to me by LettersPatent of the United States No. 271,456, and the main-magnet cores andcross piece herein described constitute the overbalancingweight of thatpatent. The lever G is pivoted atf, Figs. 2 and 4c, in suitable bracketssupported in frame or case E, and carries a frame, G, that supports twofeed-regulating trains of wheels,with their ordinary escapements anddctents, one train being connected to carbon-carrier l3 and the other tocarrier B The frame G" is pivoted in lever G at G and is provided with adepending piece, G which works in a slot in By this means a straightup-and-down movement of frame G is secured. Each train consists of theusual pinion, a, gearing with a carbon-carrier, and wheel I),connectedwith escapementwheel c. The escapeinent-pallets d of the twotrains are provided with the usual vibrating fly, c, and are mounted ona rock-shaft rocking at each end in a pivoted lever supported by frameG, which lever is weighted at its end A, so as to normally hold andresting at the other by an'adjustable screw on a support, 71. XVhen thecounterbalance G raises frame G, the fly 0 comes into engagement withthe detent and prevents the descent of the carboircarrier. \Vhen,110wever, the attraction of the derived circuit magnet D prevails, thedetent disengages from the fly, and the carbon-carrier is permitted tofeed. Each carboircarricr is provided with its own train of wheels,terminating in the fly e and a detent, f, and the feed of eithercarbonrarrier is produced by the action of its own feed-regulating trainand detent working in conjunction with the magnet system in the ordinaryway.

In order to hold one carboircarrier out of action while the other isfeeding, I. provide a detent or catch, K, consisting of an elbowshapedlever pivoted on a projection secured to the upper end of frame G. Thevertical end of the lever K is arranged to catch under a pin, 1',projecting from carbon-carrier 13 so as to prevent said carrier fromfeeding downward while carrier B is in action. The horizontal end oflever K is arranged in the path of a pin, 8, projecting fromcarboncarrier B, as shown in Figs. 7 and 8. Pin 1* is so placed on thecarrier B as to hold the carbons out of contact after a new carbon hasbeen inserted. Pin sis arranged on carbon-carrier B so as to strike thehorizontal end of lever K when the carbon of carrier B is wholly ornearly consumed. Aspring or weight tends to hold the lever K inengagement with pin 1'.

XVhen the transfer or looking lever K is supported, as above described,from the frame carried or actuated by the lamp-magnet, no change in theweight to be supported by said magnets is produced when the firstactingcarrier engages with and is held up by lever K, as would be the case ifthe lever K were hung from a fixed support independent of the mov ablesupport by which the carriers are sus tained.

The general circuits and connections of the lamp are as follows: E"indicates a plate of metal supported from an insulating-plate, F Thepositive conducting wire H passes through thetop of thelamp and intosaid plate, being secured therein by a set-screw, E, Fig. 2. The plate Ecarries conducting-springs E, bearing upon the sides of thecarbon-carriers, so asto make good connection between the positive wire,the two carbon-carriers, and the ing-post p.

upper carbons. A conducting rod, F is clamped at its upper end in theplate E", and is secured therein by a elampscrew, E. Its lower end restsin an insulated conducting plate or block, F. A similar conductingrod,F, (see Figs. 1 and 9,) is seated at its upper end :in a plate, F, alsosecured to insulatingplate E, and disconnected from plate E The negativeconducting-wire H is inserted into plate F, or secured therein in anysuitable mair ner. The lower end of rod F rests in a conducting-block, FFig. 9, to which is secured a spring, XV, whose free end can be forcedinto contact with block F by a canrpiece, XV, so as to switch the lampout of circuit. The derived-circuit magnet D is placed in circuitbetween rods F and F, one terminal of said magnet being connected to abinding-post, a, clamped to rod F its other terminal being connected toa binding-post, p, clamped to rod F. The circuit from the lower carbonsis through a side rod, H, of the lamp, as usual. Into the rod H" isscrewed a binding-post. H, from which a wire, 5, leads to magnet G. Theother terminal of said magnet is connected to rod F and the negativewire H through bind- By this arrangement the magnet D is placedin aderived circuit around the carbons, and the magnet O is in the maincircuit with the set of carbons that is for the time being in action.

A preferred form of cut-out for this lamp is constructed as follows: Mindicates a plate of iron pivoted in posts N, facing the side of magnetD. Projecting from the upper end of the plate is a copper strip orspring, M", arranged in the path ofa projection, XV secured to thecrosspieee L, so that when the plate M is attracted by magnet I), thusswinging the spring M to the left, .Fig. 2, the projection will, ifallowed to drop, strike said spring and force it into contact with red For with some other portion of the frame of the lamp. The lower end ofthe copper strip M is bent around the lower edge of plate M, and, whensaid plate is drawn forward by magnet D, makes contact with aprojection, R, from a block which is mounted on an insulating-plate, Rand is connected by wire 7 with bindingpost H. The plate M is connectedthrough one of its posts N with rod F" by a clamp, N, which clamps postN and rod F".

To assist in making good connection, copper plates N are clamped beneaththe posts N, and bear against the end of the spindle or rockshaft bywhich M is carried, and by which it is supported from post N. Across-strip, N connects, electrically, the posts N, so that if theconnection should fail at one end it may be still had through the other.

The operation of the cutout device is as follows: If, during theoperation of either carhon-carrier, the arc becomes abnormally long, themagnet D will draw the plate M forward against the influence of itsretractor, consisting of the usual retractingspring, as shown which isproperly adjusted for the purpose,

and will cause the plate M or the lower end of the strip M to makecontact with the stop R, thus completing a short circuit around themagnets O, which circuit, starting with the binding-post H, is throughwire 7, stop R, plate M, post N, clamp N, to red F and strip M towardrod F. The cores of magnet Gand cross-piece L,being thenunsupported,will fall, and the projection W will force M into contactwith red F thus completing a short circuit around the carbons and bothmagnets O, the path of such short-circuit current being from H through FM M, the supports therefor, clamp N rod F, and to negative wire H If,while the carbon is burning properly, the current be shut off, the coresof magnet G will drop, as before, but spring hf, being at such time inthe position shown in Fig. 2, will not be forced against rod F, theprojection XV being suitably perforated, as indicated by dotted lines inFig. 2, to pass down over said spring. The lamp may therefore at anytime be brought into operation again.

In order to automatically short-circuit the lamp when the second B ofthe carbon-carriers has fed down, Iprovide a projection, T which isarranged to come into contact with an insulating-piece, S, Fig. 3, uponthe end of plate M, and to cause the plate to swing and make contact atR.

The general operation of the lamps is as follows: 'Both carbons havingbeen inserted and raised to their highest points, the pin o oncarbon-carrier B will catch upon the end of lever K, so that said carbonwill be prevented from feeding, although its fly 0 may be carried out ofengagement with its detent f by the movements of the lever G. The end ofthe carbon in carrier 13 is out of contact with its lower carbon whenthe lamp starts into action; but the carrier B being free, the carbon ofthe latter will come into contact with its lower carbon, so that whenthe weight of the cores for magnet O is removed from the lever G, theweight G will raise the frame G thus forming the are in the usual way.The carboncarrier B then feeds in the ordinary way, the action of themechanism being as described in my prior patent before referred to.During this operation both carbons are supported by the magnet system,since the lever K is supported by the frame G and lever G. The positionof the carbon-carriers with relation to the lever K is indicated in Fig.8. lVhen the carbon in B has fed out, the pin 8 comes into contact withthe end of K, and said carrier is prevented from moving downwardfarther. At the same time the carrier B is released,and its carbon feedsdown into contact with the lower carbon, the operation of lifting andfeeding carrier 13 then taking place in the same manner as the lift andfeed of carrier B. During this operation both carriers are supported,

as before, by the lever G. During the ordinary operation of feeding, thelever which supports the pallets d occupies the position which issubstantially shown in Fig. 5. If, however, the arc becomes abnormallylong, lever G is thrown into the position shown in Fig. 6, thus removingthe pallets from the escapement, and allowing the carbons to runtogether, and to preserve the circuit.

This device is supplementaryto the electrical cut-out, and may take itsplace.

I do not limit myself to any special form or construction offeed-regulating devices, since my invention may be applied to otherdevices designed for producing the proper separation and feed of thecarbons.

The lever K may be varied in form without departing from the invention;but it should, by preference, be supported 011 the lever G or the frameG, carried thereby, so that the weight of both carriers shall always beupon the arma turelever or other support actuated by the magnet systemof the lamp.

I am aware that it is not new to interpose between two carriers of adouble-carbon lamp a locking-lever for holding one carrier up until theother has fed to a predetermined point, and do not wish to be understoodas claiming such device, broadly, irrespective ofits loca tion ormounting.

Vhat I claim as my invention is- 1. The combination, with twocarbon-carriers, of two independent sets of feed-regulatingmechanisms-one for each carrierconstantly in normal or feed-regulatingconnection with said carrier, so that when the magnet system acts itwill act alike and in the ordinary manner upon both mechanisms and theircarriers, a catch for engaging with and preventing the movement of onecarrier when the ieed-regulating mechanism is released by the movementof the lever, while the other is left free to move, and means forautomatically releasing the first-named carrier when the latter has fedto a predetermined point.

7 2. The combination, in a double carbon lamp, of a single pivotedframe, asingle magnet system actuating said frame, two independenttrains of wheels mounted on said frame, independent retarding devicesfor each train, detents arranged to release both trains when the frameis moved, carbon-carriers-one for each train-and means for holding onetrain from movement when both are released, while the other is left freeto rotate.

3. The combination, with two carriers sup ported from a common armaturelever or support, of an intermediate locking-lever carried by saidsupport and engaging positively with one carrier, and a releasingprojection upon the other carrier, for actuating and disengaging saidlocking-lever when the latter carrier has moved downward to apredetermined extent.

4. The combination, with the two carboncarriers, of the intermediateelbow-lever pivoted on the armature-lever of the lamp, and locking andreleasing projections on the carriers, as described, whereby the onecarrier may be held while the other is feeding, and when the latter hasfed to a predetermined point it may itself be held by thclever, and atthe same time may release the first carrier.

5. The combination, with two carbon-carriers, of a locking mechanism forholding one of said carriers from movement while the other is feeding,said mechanism being mounted on the support that carries and actuatesthe feedregulating devices for said carriers, and a suitable projectionupon the first acting of the two carriers, suitably arranged to bringsaid car rier to rest, so that its weight will bear upon the commonsupport after said carrier has fed to a predetermined extent.

6. The combination of the lever, the two independent feed regulatingmechanisms, with their independent escapements and detents, the twocarbon-carriers, the overbalancing-weight resting on the lever whenthere is no current passing, the main-circuit magnet for holding saidweight out of action, and the derived-circuit magnet connected to thelever.

7. The combination of the derived-circuit regulating-magnet, thearmature presented to the side thereof, a stop for said armature,through which the main-circuit magnet is short-circuited, and a springconnected to the armature and arranged to be forced against the frame ofthe lamp by the weight released by the main-circuit magnet.

8. The combination of the pivoted armature, the contact-stop for thelower end thereof, and the spring connected to the other end andarranged in the path of the weight normally supported by themain-circuit magnet.

9. The combination of the insulated plate to which the positiveconductor is connected, the two carbon carriers, and the contactspringssupported by said plate.

10. The combination of the insulating-plate E plates E and F,conducting-rods F F and suitable binding posts or clamps, whereby thederived-circuit magnet may be 0011- nected in circuit between said rods.

11. The combination, in a double-carbon lamp, with the second-acting ofthe two carbon-carriers, of a lug or projection, T arranged in themanner described, to engage with the automatic cut-out mechanism of thelamp when the carrier has completed its speed.

12. The combination of plate M, conducting-strip M bent around the loweredge of plate M, stop R, and means for forcing the upper end of thestrip into contact with the rod F", or other portion of the lamp-frame,upon an abnormal increase in the length of are.

18. The combination of the lever G, supporting the two feed-regulatingtrains and the two carbon carriers, the counterbalanceweight G, or itsequivalent, the derived-cir cuit magnet D, connected to said lever, andthe main-circuit magnet 0, whose cores are supported by said lever whenthe lamp is out of action, but may be raised out of connection therewithwhen the magnet is energized.

14. The combination, in a double-carbon lamp, of the feed-regulatinglever G, the derived-circuit magnet D D, whose cores are hung fromcross-bar L and the main-circuit magnets C 0, whose cores are connectedby cross-bar L, arranged to rest loosely on the end of the lever G.

Signed at New York, in the county of New York and State of NewYork, this14th day of April, A. D. 1883.

XVILLIAM HQOHHAUSEN.

Vitnesses:

THos. ToonEY, G130. G. OoFFrN.

Correction in Letters Patent No. 294,042.

It is hereby certified that Letters Patent No. 2941A), granted February26, lSS-L, upon the application of William Hoclihausen, of New York, NewYork, for an improvement in Double Electric-Arc Lamps, should havecontained the following clause, setting forth certain foreign patentswhich had been obtained by the said William Hochha-usen, Viz: Subject tothe limitation prescribed by section e887 of the Revised Statutes, byreason of English patent No. 2,057, dated April 23, 1883; French patentNo. 155,914, dated June 7, 1883; and Canadian patent No. 17,395, datedJuly 26, 1883.

It is further certified that the United States Letters Patent No.294,042 should be read with this clause inserted in the grant thereof,thereby limiting its term, and to make it conform to the files andrecords pertaining to the case in the Patent Office.

Signed, countersig'ned, and sealed this 25th day of March, A. D. 1884.

[SEAL] M. L. JOSLYN,

Acting Secretary of the Interim Gountersigned BENJ. BUTTERWORTH 7Commissioner of Patents.

Correction in Letters Patent No. 294,042.

It is hereby certified that Letters Patent No. 294.0 12, grantedFebruary 26 upon the application of William Hoehhausen, of New York, NewYork, for an in ment in Double Electric-Are Lamps, should have containedthe following setting forth certain foreign patents which had beenobtained by the said V Hochhausen, viz: Subject to the limitationprescribed by section 4887 of the I Statutes, by reason of Englishpatent No. 2,057, dated April 23, 1883; French No. 155,914, dated June7, 1883; and Canadian patent No. 17 ,395, dated July 26 It is furthercertified that the United States Letters Patent No. 294,042 sh read withthis clause inserted in the grant thereof, thereby limiting its term,make it conform to the files and records pertaining to the ease in thePatent Oi Signed, countersigned, and sealed this 25th day of March, A.D. 1884.

[SEAL] M. L. JOSLYN, Acting Secretary of the J Oountersigned BENJ.BUTTERWORTH,

COfltWtiS-QiOWG? of Patents.

